Motorcycle bag



FIG. 1 is a front and side perspective view of a motorcycle bag showingmy new design; it being understood that the broken lines areillustrative purposes only and form no part of the claimed design;

FIG. 2 is a front and opposite side perspective view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a front view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof;

FIG. 9 is a front perspective view thereof with the bag expanded; and,

FIG. 10 is a bottom plan view thereof with the bag expanded.

The ornamental design for a motorcycle bag, as shown and described.